Hex #718ea1 or rgb(113,142,161) in RGB space is the tint of blue. It has hue angle of 203.75 degrees, value = 63 and saturation = 30. #718ea1 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of blue, 4 drops of cyan, 1 drop of white.
Nearest safe hex - #669999. Below you can see the block with #718ea1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #718ea1 to the mixer and play with it.